If you've got plans to spend the entire weekend sat down scoffing food, there is no reason to feel guilty - as long as you exercise on the Friday.
University of Texas Southwestern researchers have found exercising 'semi-intensely' just once can 'reap benefits that last for days'. Tests on mice showed their metabolism was boosted for 48 hours - meaning a gym session on a Friday could allow you to indulge for an entire weekend.
A person's metabolism sets the rate they burn calories.'It doesn't take much exercise to alter the activity of these neurons,' says lead researcher Dr Kevin Williams. 'Based on our results, we would predict that getting out and exercising even once in a semi-intense manner can reap benefits that can last for days, in particular with respect to glucose metabolism.'